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Publicações
Alizadeh, F. e Guedes Soares, C. (2017), “Numerical analysis of mixed-mode fracture toughness of glass/vinylester composite laminates”, Progress in the Analysis and Design of Marine Structures, Guedes Soares, C. & Garbatov Y. (Eds.), Taylor & Francis Group, London, UK, pp. 329-335
By numerical modelling of a test procedure, this paper investigates the delamination phenomenon in Glass/Vinylester composite laminated. An Arcan apparatus and specimen is modeled by finite elements for different loading conditions. The finite element results indicate that for loading angles close to pure mode-II loading, a high ratio of mode-II to mode-I fracture is dominant and there is an opposite trend for loading angles close to pure mode-I loading. It confirms that by varying the loading angle of Arcan specimen pure mode-I, pure mode-II and a wide range of mixed-mode loading conditions can be created and tested. Also, numerical results confirm that the increase of the mode- II loading contribution leads to an increase of fracture resistance in the Glass/Vinylester composite i.e., a reduction in the total strain energy release rate.
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